LARGE, SUCKING BUGS INJURING FOLIAGE 191 
are laid in batches on the under side of a leaf, and are orange or red in 
color. They are easily seen. 
The adults hibernate in old vines or other shelter. There is one 
brood annually in the North, but two or even three in the South. 
The young may be killed by spraying with 10 per cent kerosene 
emulsion. Egg masses should be destroyed. The adults may be 
trapped under bits of board or stones, where they should be looked for 
frequently. Destroy the vines as soon as the crops are off, in order 
to kill the bugs not yet matured. No contact spray is known that 
will kill the adults without also seriously injuring the vines. 
The Harlequin Cabbage-bug (Jurgantia histrionica Hahn.) 
Cabbages, cauliflower, and 
related plants, in the South 
Atlantic states, are badly 
injured or destroyed by a 
small, gaudily colored bug, 
variously known as the 
“calico back,” or “terrapin 
bug.”” The leaves of the 
plants attacked shrivel and 
turn brown, and often the 
plant is killed outright. 
The adult bug is one 
Fie. 238.—The Harlequin Cab- 
bage-bug. Eggs, nymph, and 
adult. Original. 
fourth of an inch long, broad, 
shield shaped, and strikingly 
marked with red or yellow, and 
deep blue. The young, or eS 
nymphs, are similar in appear- Fyg. 239,— Eggs of the Harlequin Cab- 
ance. Close search of the leaves bage-bug. Enlarged. Original. 
